Convert Rankine to Kelvin
Turn Rankine into Kelvin in an instant. Type a value below to get an accurate °R → K result, with the formula and a quick-reference table.
1 °R = 0.55555556 K
Quick answer: 1 Rankine = 0.55555556 Kelvin
Rankine to Kelvin conversion table
| Rankine (°R) | Kelvin (K) |
|---|---|
| 1 °R | 0.55555556 K |
| 2 °R | 1.1111111 K |
| 5 °R | 2.7777778 K |
| 10 °R | 5.5555556 K |
| 20 °R | 11.111111 K |
| 50 °R | 27.777778 K |
| 100 °R | 55.555556 K |
| 500 °R | 277.77778 K |
| 1,000 °R | 555.55556 K |
How to convert Rankine to Kelvin
- Enter the value in Rankine in the converter above.
- It applies the exact °R → K formula instantly.
- Read the converted result in Kelvin.
For example, the freezing point of water is about 491.67 °R, which is 273.15 K.
About Rankine and Kelvin
Rankine is an absolute temperature scale that uses Fahrenheit-sized degrees, starting at absolute zero. It appears in some US engineering and thermodynamics work.
The kelvin is the SI base unit of temperature, starting at absolute zero (0 K = −273.15 °C). It is used in science and engineering, where an absolute scale matters.
The Rankine and the Kelvin are different scales, so the converter applies the exact °R → K formula — handling any offset between them — to give an accurate result every time.
Other temperature conversions
Frequently asked questions
How many Kelvin are in a Rankine?
1 Rankine converts to 0.55555556 Kelvin (°R → K). For any other amount, enter it in the converter above — it applies the exact °R → K formula instantly, with full precision.
How do I convert Rankine to Kelvin?
Enter the number of Rankine in the converter above and read the result in Kelvin. It applies the exact °R → K factor instantly, with full precision.
Is the Rankine to Kelvin converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined temperature factors and full floating-point precision, then rounds the display to a clean, readable number.